Harrow.



F. 1. SELVERIA.

HARROWr APPLICATION FILE-D Aue.1s. 1912.

Patented Apr. 30, 1918.

2 SHEETSSHEET 1.

Z5 yf ATTORNEY F. 1. SILVERIAQ.

HARROW.

APPLICATION HLED AUG.I3| 19H- ]Patented Apr. 30, 1918.

2 SHEETS-SHEET 2.

INVENTQR a fiwwmmg WITNESSES ATTORNEY lltlFit FRANK J. SILVERIA, 0FNIPOMIO, CALIFORNIA.

HARROW'.

specification of Letters Patent.

Patented Apr. so, rare.

Application filed August 13, 1917. Serial No. 185,9?4.

To all whom it may concern:

Be it known that I, FRANK J. Sinvnnia, a citizen of the United States,residing at Nipomo, in the county of San Luis Obispo and State ofCalifornia, have invented certain new and useful Improvements in Hanrows, of which the following is a specification.

This invention relates to barrows, and more particularly to a harrow ofthe self cleaning type.

One of the main objects of the invention is to provide a harrow of thecharacter stated of simple construction and operation which may beproduced at relatively small cost. A further object is to provide aharrow having vertically movable cleaning elements for removing trashand foreign matter from the harrow teeth, these cleaning elements beingso constructed as to cutthe trash from the teeth and efiectually clean.the same. A further object is to provide a harrow having beams ofchannel construction and spaced cleaning members for the harrow teeth,the

' beams and cleaning members being so related that, when in inoperativeposition, the cleaning members will be positioned entirely within thebeams so as to be protected thereby, thus avoiding all projections suchas would tend to catch in the ground being harrowed and interfere withthe harrowing operation. Further objects will appear from the detaileddescription.

In the drawings Figure 1 is a top plan View of a harrow constructed inaccordance with my invention.

Fig. 2 is a side view of the same with the cleaning members in raised orinoperative position.

F ig. 3 is a similar view with the cleaning members lowered.

Fig. 4- is a section on line 1d of Fig. 3.

Fig. 5 is a section on line 55 of Fig. 3.

Fig. 6 is a fragmentary detail of the means for securing the harrowteeth in position.

Fig. 7 is a section on line 77 of Fig. 6.

Fig. 8 is a section taken substantially on line 88 of Fig. 6.

The body of the harrow is composed of the spaced parallel beams 1 whichare rigidly maintained in proper relation by the transverse brace bars 2and 8, and the diagonal bar 4 secured to the beams. Beams 1 are ofchanneled construction being of inverted U- shape in cross section. Eachbeam is provided with a longitudinally extending series of suitablyspaced teeth 5. Each of these teeth is of rectan ular cross section andis inserted through a suitable opening through the top 1 of beam 1.Tooth 5 is disposed with its diagonally disposed corners directed in thelongitudinal plane of the beam. A. transverse securing bolt 6 is securedthrough the lateral arms 7 and S of the beam and fits snugly into anarcuate recess 6 provided in the rearward edge of the tooth. A secondsecuring bolt 9 is secured through the arms 7 and 8 of beam 1 above bolt6. Bolt 9 is provided with a V-shaped recess 10 which fits snugly aboutthe forward edge portion of teeth These two bolts thus co operate torigidly maintain the liarrow tooth in vertical position in the beam 1.

A transverse shaft 11 is rockably mounted, adjacent the forward end ofthe barrow, in suitable bearing straps 12 secured to the beams 1. Asimilar shaft 13 is r elatably mounted adjacent the reari'vard end ofthe harrow in bearing straps 1 1-. Shaft 11 bent at right angles at eachend to provide an integral arm 15, shaft 13 being provided at each endwith a similar arm 16. The lower end of arm 16 is pivotally secured by abolt 17 to a pair of spaced parallel cleaning bars 18, this bolt beingcounter-sunk into one of the bars, and suitable spacing sleeves 19 and20 being interposed. between the bars, and between the outer bar and arm15, as shown in Fig. 5 of the drawings. By this construction thecleaning bars 18 are so connected to arm 16 as to be readily raised orlowered when shaft 13 is rocked. Arm 15 of shaft 11 is similarly securedto the cleaning bars 18 adjacent the forward end thereof. By rockingshafts 11 and 13 simultaneously, the cleaning bars may be either raisedor lowered as desired, depending upon the direction in which the shaftsare rocked.

Bars 18 are so spaced as to fit snugly against the lateral faces of theharrow teeth 5, and the interior width of beam 1 is such as to snuglyreceive the cleanin bars be-.

tween the lateral arms 7 and 8 of the beam and the sides of the teeth 5,when these bars are moved into raised or inoperative position asindicated in dotted lines in Fig. 4 of the drawings. By these means, thecleaning bars, when not in use, are covered so as to present noprojection such as would interfere with the proper operation of theharrow. Shaft 11 is further provided, adjacent each beam 1, with aconnecting arm 21 secured thereto at its upper end and connected at itslower end to a pair of cleaning bars which may be moved into and out ofthe intermediate beams 1, these arms corresponding to the arms 15 ofshaft 11. Shaft 13 is provided with similar arms 22 connected to thecleaning bars of the intermediate beams and corresponding to arms 16 ofthis shaft. By these means, the teeth of all of the beams 1 may bequickly and easily cleaned in a single operation.

An upwardly directed arm 23 is secured to shaft 11 at the centerthereof. The upper end of this arm is pivotally secured to the forwardend of an operating link 2&. An arcuate rack 25 is secured to therearward endof link 24. A spring pressed detent 26 carried by hand lever27 and controlled by latch lever 28 cooperates with rack 25 to securethe lever in adjustment. The lower end of hand lever 27 is secured toshaft 13 at the center thereof, and the link 24 is pivotally secured tothe hand lever at 29 midway between the ends of rack 25, the distancefrom shaft 18 to point 29 corresponding to the distance between shaft 11and the point of connection between the link and arm 23. By disengagingdetent 26 from rack 25, lever 27 may be easily moved in either directionso as to impartsimultaneous and similar rocking movement to shafts 11and 13 thus raising or lowering the cleaning bars 18 for the teeth 5.The engagement of the detent with the rack 25 serves to nor mallymaintain the cleaning bars in any desired adjusted position.

As will be noted more particularly from Figs. 4 and 5 of the drawings,the lower edges of cleaning bars 18 are beveled downward and inward asat 18 thus providing cutting edges which snugly fit against the lateraledges or corners of the teeth. When the cleaning bars are lowered, thesecutting edges serve to eflectually remove trash, weeds, and otherforeign material from the teeth so as to effectively clean the same. Topermit the cleaning bars to be raised sufliciently to be containedentirely within beams 1, the beams are provided With suitable cut outsor notches 30 and 31 adapted to receive the spacing sleeves intermediatethe outer cleaning bar 18 and the lower ends of arms 15 and 16,respectively. By rocking the shafts 11 and 13 forward and downward, thearms 15 and 16, and 21 and 22 will be swung upwardly and rearwardlythrough an are so as to raise the pairs of swinging bars intoinoperative position within the beams 1. l/Vhen it is desired to cleanthe teeth 5, this operation is reversed, after which the cleaning barsmay be returned to raised or inoperative position. When the cleaningmembers are lowered they are moved both longitudinally and transverselyof the teeth 5 thus obtaining a draw cut which serves to readily removeall foreign substance adhering to the teeth. This insures propercleaning of the teeth as well as facilitating operation of the cleaningapparatus.

This cleaning device, as will be obvious, may be readily applied to aharrow of standard construction employing beams of the channel orU-shaped type, avoiding the necessity of any extensive changes in theconstruction of the harrow itself. It will bo evident that there may beslight changes made in the construction and arrangement of the variousparts of my invention without departing from the field and scope of thesame, and I intend to include all such varir. lions, as fall within thescope of the appended claims, in this application in which a preferredform only of my invention is disclosed.

What I claim is 1. In harrows, a plurality of spaced beams each providedwith a series of teeth, spaced cleaning elements fitting snugly aboutthe. lateral faces of the teeth and movable longitudinally of the same,and means for operating said cleaning elements, said beams being adaptedto receive the cleaning members when raised into their uppermostposition so as to completely inclose the same.

In harrows, a plurality of spaced beams of channel construction eachprovided with a series of teeth, spaced cleaning members fitting snuglyabout the lateral edges of said teeth and movable longitudinally of thesame, said cleaning members being adapted to fit between the teeth andthe lateral arms of said beams when raised so as to be positioned withinthe beam, and means for opera ting said cleaning members.

3. In harrows, a plurality of spaced beams of inverted U-shape in crosssection each provided with a series of teeth, a pair of spaced cleaningbars fitting snugly about the lateral edges of the teeth of each beamandv adapted to fit snugly between said teeth and the lateral arms ofthe beam when in raised position, transverse shafts mounted adjacenteach end of the harrow and connected to said cleaning members so as toraise or lower the same when the shafts are rocked, and means forimparting simultaneous and similar rocking movement to said shafts andfor securing the shafts in rocked adj ustment.

In testimony whereof I aflix my signature in presence of two witnesses.

FRANK J. SILVEAIA.

Witnesses F. J. FEENEY, A. R. MARSH.

(Copies of this; patent may be obtained for five cents each, byaddressing the Commissioner of Patents Washington, D. G."

